The machines give you full body resistance training, much like a weightlifting routine, but it won't bulk you up. The equipment adds another dimension to Pilates work, and is tons of fun! It also allows you to get into positions that you may not have been able to achieve on your own.
The reformer is a rectangular frame with four legs. The cushioned mat (carriage) slides back and forth on wheels with the resistance of springs and pulleys.
The Cadillac is a trapeze-like table that's 26 inches off the floor and has a canopy from which a trapeze, springs and pulleys hang. Because it's elevated, it's perfect for older people that have trouble getting down on the floor.